Is It Necessary to Install Rainproof Film If the Rearview Mirror Has Heating Function?
3 Answers
Yes, but you need to replace the rearview mirror glass (or purchase heating pads) and wire it with a switch. Frequent drivers will notice that in certain weather conditions, such as rainy winter days or spring mornings and evenings, the exterior rearview mirrors often get fogged up, making it impossible to see anything. Therefore, having heated exterior mirrors is a very practical feature. Additional Information: Functions of Rearview Mirror Rainproof Film: 1. It has excellent hydrophobic properties, effectively preventing rainwater from adhering and avoiding obstruction of rearview visibility, thereby enhancing driving safety in rainy conditions. 2. High-quality films offer excellent clarity and also feature waterproof, anti-fog, anti-dust, and anti-fingerprint functions, keeping the mirror surface clear at all times and eliminating the hassle of driving in the rain.
My car has been equipped with a rearview mirror heating function for the past seven or eight years, and it's been my go-to solution for rainy and foggy weather. Once the heating is turned on, tiny water droplets evaporate quickly, ensuring crystal-clear visibility. As for rain repellent films, I initially skipped them to save money, but during one rainy season, I gave it a try and found that it makes raindrops slide off incredibly fast, leaving almost no traces. Honestly, though, the heating function is sufficient unless you live in a place like Guangdong where heavy rain is frequent, or if you're a safety enthusiast wanting extra protection. The film costs around 100-200 yuan but degrades over time and needs replacement periodically. Keeping it clean is also crucial; otherwise, nothing works well. In short, heating is a must, while the film is a bonus—it all depends on your budget and needs, so don’t waste money unnecessarily.
As a seasoned driver, I must say that the rearview mirror heating function is indeed effective, especially in cold weather when it quickly defrosts and demists. As for the rain-repellent film, I haven't applied it myself, but I've studied its hydrophobic principle, which accelerates water runoff during heavy rain, reducing blind spots. While heating is sufficient for most daily situations, if you frequently drive long distances or in rainy areas, the film can add an extra layer of security, making driving more reassuring. Regularly checking mirror cleanliness to avoid oil stains affecting performance is more practical than anything else. Considering all factors, heating is the foundation, and the film is the icing on the cake; striking a balance is the most cost-effective choice.
